{
  "schema_version": "1.4.0",
  "id": "GHSA-jh37-772x-4hpw",
  "modified": "2021-08-24T19:12:12Z",
  "published": "2021-08-25T21:01:52Z",
  "aliases": [
    "CVE-2021-31996"
  ],
  "summary": "Double free in algorithmica",
  "details": "An issue was discovered in the algorithmica crate through 2021-03-07 for Rust. In the affected versions of this crate, `merge_sort::merge()` wildly duplicates and drops ownership of `T` without guarding against double-free. Due to such implementation, simply invoking `merge_sort::merge()` on `Vec<T: Drop>` can cause **double free** bugs.\n",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "crates.io",
        "name": "algorithmica"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.1.8"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31996"
    },
    {
      "type": "WEB",
      "url": "https://github.com/AbrarNitk/algorithmica/issues/1"
    },
    {
      "type": "WEB",
      "url": "https://rustsec.org/advisories/RUSTSEC-2021-0053.html"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-25T20:52:19Z",
    "nvd_published_at": null
  }
}